cli: add --cert-principal-map to `cert list` command

[jseldess]

Jesse Seldess commented:

PR: cockroachdb/cockroach#48013

From release notes:

Added support to [cockroach cert list](../v20.2/cockroach-cert.html] for certificates which require --cert-principal-map to pass validation. [#48013][#48013) {% comment %}doc{% endcomment %}

Jira Issue: DOC-570